Who owes whom some hoes?

Rihanna and Chris Brown are throwing thinly veiled barbs at each other on Twitter, and it sounds like they are accusing each other of cheating!

Chris Brown and Rihanna are definitely in an off-again stage of their on-again, off-again romance — he confirmed their breakup earlier this week — and we might be getting some real insight into the reason why.

The famous pair have been posting pointed barbs on Twitter, and it's getting pretty juicy!

Rihanna started the war with an image that read, "If I drop all my hoes for you and we still don't work out you owe me some hoes."

Brown followed up with, "She's not mine if she's everybody else's."

Rihanna came back with, "Settling is not an option! Nothing less than 100% loyalty, honesty, and respect!! Love ain't for kidz #butimsleeptho."

That was matched by Brown's comment, "Sometimes loving someone is too much! So loving from a distance will help everyone grow! Be blessed. Live ya life!"

The Twitter war may have been spurred by reports that Rihanna was spotted partying with her ex, J.R. Smith, after a recent concert and by sightings of Brown celebrating his birthday with his ex, Karrueche Tran.

Brown explained the breakup during a radio interview earlier this week, saying, "I mean, at the end of the day, shawty doing her own thang, she on the road. It's always gonna be love. I'm a grown man — just gotta fast-forward.

"The way I look at it is that I am always gonna love that person, and people have different wants and needs. At the end of the day, [Rihanna's] a young girl. I can't really be focused on wife-ing somebody that young, and I'm young too. I just got to step forward and be a man and be the best Chris Brown I can be, instead of worrying about whoever else is going to be in my side pocket."